2117228681742 has 8 divisors (see below), whose sum is σ = 4234457363496. Its totient is φ = 705742893912.

The previous prime is 2117228681731. The next prime is 2117228681753. The reversal of 2117228681742 is 2471868227112.

It is an interprime number because it is at equal distance from previous prime (2117228681731) and next prime (2117228681753).

It is a sphenic number, since it is the product of 3 distinct primes.

2117228681742 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176435723473 + ... + 176435723484.

It is an arithmetic number, because the mean of its divisors is an integer number (529307170437).

Almost surely, 2^{2117228681742} is an apocalyptic number.

2117228681742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2117228681742 is a wasteful number, since it uses less digits than its factorization.

2117228681742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352871446962.

The product of its digits is 1204224, while the sum is 51.

The spelling of 2117228681742 in words is "two trillion, one hundred seventeen billion, two hundred twenty-eight million, six hundred eighty-one thousand, seven hundred forty-two".